Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

mediamessaging.o2.co.uk

Media messaging - Messaging - Services - O2

Page Load Speed

3.8 sec in total

First Response

298 ms

Resources Loaded

3.4 sec

Page Rendered

122 ms

mediamessaging.o2.co.uk screenshot

About Website

Click here to check amazing Media Messaging O2 content for United Kingdom. Otherwise, check out these important facts you probably never knew about mediamessaging.o2.co.uk

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Key Findings

We analyzed Mediamessaging.o2.co.uk page load time and found that the first response time was 298 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

mediamessaging.o2.co.uk performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value6.7 s

37/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

mediamessaging.o2.co.uk

298 ms

dispatch.do

627 ms

wrapperBD.css

360 ms

fragmentStyle.css

466 ms

core.js

387 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Mediamessaging.o2.co.uk, 78% (46 requests) were made to Static.o2.co.uk and 14% (8 requests) were made to O2.co.uk. The less responsive or slowest element that took the longest time to load (627 ms) belongs to the original domain Mediamessaging.o2.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 455.2 kB (80%)

Content Size

567.6 kB

After Optimization

112.4 kB

In fact, the total size of Mediamessaging.o2.co.uk main page is 567.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 272.3 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 51.6 kB

  • Original 59.6 kB
  • After minification 50.8 kB
  • After compression 8.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 8.8 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 51.6 kB or 87% of the original size.

Image Optimization

-16%

Potential reduce by 1.9 kB

  • Original 11.8 kB
  • After minification 9.9 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Media Messaging O2 needs image optimization as it can save up to 1.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 214.4 kB

  • Original 272.3 kB
  • After minification 201.8 kB
  • After compression 57.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 214.4 kB or 79% of the original size.

CSS Optimization

-84%

Potential reduce by 187.4 kB

  • Original 223.9 kB
  • After minification 190.4 kB
  • After compression 36.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Mediamessaging.o2.co.uk needs all CSS files to be minified and compressed as it can save up to 187.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (79%)

Requests Now

57

After Optimization

12

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Media Messaging O2. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

mediamessaging.o2.co.uk accessibility score

69

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Form elements do not have associated labels

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

mediamessaging.o2.co.uk best practices score

69

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Registers an unload listener

High

Browser errors were logged to the console

SEO Factors

mediamessaging.o2.co.uk SEO score

67

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mediamessaging.o2.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Mediamessaging.o2.co.uk main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Media Messaging O2. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: